64a8cef6-2d5b-452b-8f60-0cfa85ae51bc English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:26:00 UK GEMINI 2.3 OSGB 1936 / British National Grid Benthic biofilm chlorophyll a content and biomass data for 3 intensively studied Wessex chalkstream sites, England, UK 2017-06-26 publication 2013-10-31 creation https://catalogue.ceh.ac.uk/id/64a8cef6-2d5b-452b-8f60-0cfa85ae51bc 10.5285/64a8cef6-2d5b-452b-8f60-0cfa85ae51bc doi: Pretty, J., Pacioglu, O., Duerdoth, C., Arnold, A., Murphy, J., Hawczak, A., Jones, J.I. (2017). Benthic biofilm chlorophyll a content and biomass data for 3 intensively studied Wessex chalkstream sites, England, UK. NERC Environmental Information Data Centre 10.5285/64a8cef6-2d5b-452b-8f60-0cfa85ae51bc Chlorophyll-a content and ash-free dry mass of quantitative samples of the biofilm on benthic substrate from three chalkstream sites in the Wessex chalk area (Nine Mile River, River Till and River Wylye). Chlorophyll a content and biomass were determined from up to 10 replicate samples at each site on each sampling occasion. The data are presented as means with standard deviation. Data were collected on seven occasions on the Wylye and Nine Mile River and on five occasions on the Till, between October 2012 and October 2013. Data were collected to construct quantified food webs detailing the flux of mass and nutrients between nodes of the food web. This dataset was created as part of work package 3.2 of the Wessex Biodiversity & Ecosystem Service Sustainability (BESS) project. Full details about this dataset can be found at https://doi.org/10.5285/64a8cef6-2d5b-452b-8f60-0cfa85ae51bc Murphy, J. Queen Mary University of London j.f.murphy@qmul.ac.uk pointOfContact Pretty, J. Queen Mary University of London j.l.pretty:qmul.ac.uk author Pacioglu, O. Queen Mary University of London octavian.pacioglu@e-uvt.ro author Duerdoth, C. Queen Mary University of London c.p.duerdoth@qmul.ac.uk author Arnold, A. Queen Mary University of London a.arnold@qmul.ac.uk author Murphy, J. Queen Mary University of London j.f.murphy@qmul.ac.uk author Hawczak, A. Queen Mary University of London adibabe_19@hotmail.com author Jones, J.I. Queen Mary University of London j.i.jones@qmul.ac.uk author NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC Environmental Information Data Centre info@eidc.ac.uk publisher Queen Mary University of London EMAIL NOT PROVIDED owner notPlanned Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Wessex BESS otherRestrictions no limitations otherRestrictions This resource is made available under the terms of the Open Government Licence otherRestrictions © Queen Mary University of London otherRestrictions If you reuse this data, you should cite: Pretty, J., Pacioglu, O., Duerdoth, C., Arnold, A., Murphy, J., Hawczak, A., Jones, J.I. (2017). Benthic biofilm chlorophyll a content and biomass data for 3 intensively studied Wessex chalkstream sites, England, UK. NERC Environmental Information Data Centre https://doi.org/10.5285/64a8cef6-2d5b-452b-8f60-0cfa85ae51bc textTable English utf8 biota 2012-10-01 2013-10-31 -2.981 -0.985 50.525 51.661 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/sd/64a8cef6-2d5b-452b-8f60-0cfa85ae51bc.zip Supporting information Supporting information available to assist in re-use of this dataset information https://catalogue.ceh.ac.uk/datastore/eidchub/64a8cef6-2d5b-452b-8f60-0cfa85ae51bc/WP3_2_Food_Web_Benthic_Algae_Chlorophylla_Biomass.csv Download the data Download a copy of this data fileAccess dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Samples were collected on 7 separate occasions from Nine Mile River and the River Wyle. However samples were only collected on five occasions from the River Till. We did not sample this river during the salmonid breeding season Dec-Mar so as not to disturb redds. Also two replicate chlorophyll-a samples were not processed from Nine Mile River in March 2013. Standard laboratory procedures for determining chlorophyll-a and ash-free dry mass (AFDM) content were strictly followed but there was no formal quality assurance procedure, such as repeat analysis of replicate aliquots from the same replicate scrap. Final values were checked for marked outliers (none were found) before calculations were undertaken.